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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
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MPX4105 Integrated Silicon Pressure Sensor Manifold Absolute Pressure Sensor On-Chip Signal Conditioned, Temperature Compensated and Calibrated
The Motorola MPX4105 series Manifold Absolute Pressure (MAP) sensor for engine control is designed to sense absolute air pressure within the intake manifold. This measurement can be used to compute the amount of fuel required for each cylinder. The small form factor and high reliability of on-chip integration makes the Motorola MAP sensor a logical and economical choice for automotive system designers. The MPX4105 series piezoresistive transducer is a state-of-the-art, monolithic, signal conditioned silicon pressure sensor. This sensor with its patented transducer, combines advanced micromachining techniques, thin film metallization, and bipolar semiconductor processing to provide an accurate, high level analog output signal that is proportional to applied pressure. Figure 1 shows a block diagram of the internal circuitry integrated on a pressure sensor chip. Features * 1.7% Maximum Error over 0 to 85C * Specifically Designed for Intake Manifold Absolute Pressure Sensing in Engine Control Systems * Ideally Suited for Microprocessor Interfacing * Patented Silicon Shear Stress Strain Gauge * Temperature Compensated over - 40C to +125C * Durable Epoxy Unibody Element * Ideal for Non-Automotive Applications * Consult Factory for Top Piston Fit Package Availability Application Examples * Manifold Sensing for Automotive Systems
VS 3
SERIES
OPERATING OVERVIEW INTEGRATED PRESSURE SENSOR 15 to 105 kPa (2.18 to 15.2 psi) 0.31 to 4.90 Volts Output
BASIC CHIP CARRIER ELEMENT CASE 867-08, STYLE 1 NOTE: Pin 1 is the notched pin.
PIN NUMBER
1 2 3 Vout Gnd VS 4 5 6 N/C N/C N/C
NOTE: Pins 4, 5, and 6 are internal device connections. Do not connect to external circuitry or ground.
X-ducer SENSING ELEMENT
THIN FILM TEMPERATURE COMPENSATION AND GAIN STAGE #1 2 GND
GAIN STAGE #2 AND GROUND REFERENCE SHIFT CIRCUITRY
1
Vout
PINS 4, 5 AND 6 ARE NO CONNECTS
Figure 1. Fully Integrated Pressure Sensor Schematic
Senseon and X-ducer are trademarks of Motorola, Inc.
Motorola Sensor Device Data (c) Motorola, Inc. 1997
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MPX4105 SERIES
MAXIMUM RATINGS(1)
Parametrics Overpressure(2) (P1 > P2) Burst Pressure(2) (P1 > P2) Storage Temperature Operating Temperature Symbol Pmax Pburst Tstg TA Value 400 1000 - 40 to +125 - 40 to +125 Unit kPa kPa C C
1. TC = 25C unless otherwise noted. 2. Exposure beyond the specified limits may cause permanent damage or degradation to the device.
OPERATING CHARACTERISTICS (VS = 5.1 Vdc, TA = 25C unless otherwise noted, P1
Characteristic Pressure Range(1) Supply Voltage(2) Supply Current Minimum Pressure Offset(3) @ VS = 5.1 Volts Full Scale Output(4) @ VS = 5.1 Volts Full Scale Span(5) @ VS = 5.1 Volts Accuracy(6) Sensitivity Response Time(7) Output Source Current at Full Scale Output Warm-up Time(8) Offset Stability(9) (0 to 85C) (0 to 85C) (0 to 85C) (0 to 85C) Symbol POP VS Io Voff VFSO VFSS -- V/P tR Io+ -- -- Min 15 4.85 --
u P2)
Typ -- 5.1 7.0 0.306 4.896 4.590 -- 51 1.0 0.1 20 0.5 Max 105 5.35 10 0.428 4.988 -- 1.7 -- -- -- -- -- Unit kPa Vdc mAdc Vdc Vdc Vdc %VFSS mV/kPa mS mAdc mSec %VFSS
0.184 4.804 -- -- -- -- -- -- --
Decoupling circuit shown in Figure 3 required to meet electrical specifications.
MECHANICAL CHARACTERISTICS
Characteristic Weight, Basic Element (Case 867) Common Mode Line Pressure(10) Symbol -- -- Min -- -- Typ 4.0 -- Max -- 690 Unit Grams kPa
NOTES: 1. 1.0kPa (kiloPascal) equals 0.145 psi. 2. Device is ratiometric within this specified excitation range. 3. Offset (Voff) is defined as the output voltage at the minimum rated pressure. 4. Full Scale Output (VFSO) is defined as the output voltage at the maximum or full rated pressure. 5. Full Scale Span (VFSS) is defined as the algebraic difference between the output voltage at full rated pressure and the output voltage at the minimum rated pressure. 6. Accuracy (error budget) consists of the following: * Linearity: Output deviation from a straight line relationship with pressure over the specified pressure range. * Temperature Hysteresis: Output deviation at any temperature within the operating temperature range, after the temperature is cycled to and from the minimum or maximum operating temperature points, with zero differential pressure applied. * Pressure Hysteresis: Output deviation at any pressure within the specified range, when this pressure is cycled to and from minimum or maximum rated pressure at 25C. * TcSpan: Output deviation over the temperature range of 0 to 85C, relative to 25C. * TcOffset: Output deviation with minimum pressure applied, over the temperature range of 0 to 85C, relative to 25C. * Variation from Nominal: The variation from nominal values, for Offset or Full Scale Span, as a percent of VFSS at 25C. 7. Response Time is defined as the time for the incremental change in the output to go from 10% to 90% of its final value when subjected to a specified step change in pressure. 8. Warm-up is defined as the time required for the product to meet the specified output voltage after the Pressure has been stabilized. 9. Offset stability is the product's output deviation when subjected to 1000 hours of Pulsed Pressure, Temperature Cycling with Bias Test. 10. Common mode pressures beyond what is specified may result in leakage at the case-to-lead interface.
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Motorola Sensor Device Data
MPX4105 SERIES
WIRE BOND
LEAD FRAME
Figure 2 illustrates the absolute sensing chip in the basic chip carrier (Case 867). A fluorosilicone gel isolates the die surface and wire bonds from the environment, while allowing the pressure signal to be transmitted to the sensor diaphragm. The MPX4105 series pressure sensor operating characteristics, and internal reliability and qualification tests are based on use of dry air as the pressure media. Media, other than dry air, may have adverse effects on sensor performance and long-term reliability. Contact the factory for information regarding media compatibility in your application.
5.0 4.5 4.0 OUTPUT (Volts) 3.5 3.0 2.5 2.0 1.5 1.0 0.5 TRANSFER FUNCTION: Vout = Vs* (0.01*P-0.09) Error VS = 5.1 Vdc TEMP = 0 to 85C 15 kPA TO 105 kPA MPX4105A
Motorola Sensor Device Data
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110
EEEEEEEEEEE EEEEEEEEEEE EEEEEEEEEEE EEEEEEEEEEE EEEEEEEEEEE
P2 SEALED VACUUM REFERENCE
SILICONE DIE COAT
DIE P1
STAINLESS STEEL METAL COVER EPOXY CASE
MPX4105A OUTPUT (PIN 1) 50 pF 51 k
A/D
PROCESSOR
RTV DIE BOND
Figure 2. Cross-Sectional Diagram (Not to Scale)
Figure 3. Typical Decoupling Filter for Sensor to Microprocessor Interface Figure 3 shows a typical decoupling circuit for interfacing the integrated MAP sensor to the A/D input of a microprocessor. Proper decoupling of the power supply is recommended. Figure 4 shows the sensor output signal relative to pressure input. Typical, minimum, and maximum output curves are shown for operation over a temperature range of 0 to 85C. (The output will saturate outside of the specified pressure range.)
MAX TYP
MIN
0
Pressure (ref: to sealed vacuum) in kPa
Figure 4. Output versus Absolute Pressure
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MPX4105 SERIES
Transfer Function (MPX4105A)
Nominal Transfer Value: Vout = VS (P x 0.01 - 0.09) +/- (Pressure Error x Temp. Factor x 0.01 x VS) VS = 5.1 V 0.25 Vdc
Temperature Error Band
4.0 3.0 Temperature Error Factor 2.0 1.0 0.0 -40 -20
MPX4105A Series
Break Points Temp - 40 - 20 0 to 85 125 Multiplier 3.0 1.5 1.0 2.5
0
20
40
60
80
100
120
140
Temperature in C NOTE: The Temperature Multiplier is a linear response from -40C to -20C, -20C to 0C, and from 85C to 125C
Pressure Error Band
3.0 2.0 Pressure Error (kPa) 1.0 0.0 20 -1.0 - 2.0 Pressure - 3.0 40 to 94 (kPa) 15 (kPa) 105 (kPa) Error (Max) 1.5 (kPa) 2.4 (kPa) 1.8 (kPa) 40 60 80 100 120 Pressure (in kPa) Error Limits for Pressure
ORDERING INFORMATION The MPX4105A series MAP silicon pressure sensors are available in the basic element package that provide printed circuit board mounting ease.
Device Type Basic Element Options Absolute Element Absolute, Case No. 867-08 MPX Series Order No. MPX4105A Marking MPX4105A
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Motorola Sensor Device Data
MPX4105 SERIES
PACKAGE DIMENSIONS
C R M B -A- N
PIN 1 SEATING PLANE
1 2 3 4 5 6
POSITIVE PRESSURE (P1)
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION -A- IS INCLUSIVE OF THE MOLD STOP RING. MOLD STOP RING NOT TO EXCEED 16.00 (0.630). INCHES MIN MAX 0.595 0.630 0.514 0.534 0.200 0.220 0.027 0.033 0.048 0.064 0.100 BSC 0.014 0.016 0.695 0.725 30 _NOM 0.475 0.495 0.430 0.450 0.090 0.105 MILLIMETERS MIN MAX 15.11 16.00 13.06 13.56 5.08 5.59 0.68 0.84 1.22 1.63 2.54 BSC 0.36 0.40 17.65 18.42 30 _NOM 12.07 12.57 10.92 11.43 2.29 2.66
L
-T- G F D 6 PL 0.136 (0.005)
M
J S
TA
M
DIM A B C D F G J L M N R S
CASE 867-08 ISSUE N
BASIC ELEMENT (A, D)
STYLE 1: PIN 1. 2. 3. 4. 5. 6.
VOUT GROUND VCC V1 V2 VEX
Motorola Sensor Device Data
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MPX4105 SERIES
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. Mfax is a trademark of Motorola, Inc. How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 5405, Denver, Colorado 80217. 303-675-2140 or 1-800-441-2447 JAPAN: Nippon Motorola Ltd.; Tatsumi-SPD-JLDC, 6F Seibu-Butsuryu-Center, 3-14-2 Tatsumi Koto-Ku, Tokyo 135, Japan. 81-3-3521-8315
MfaxTM: RMFAX0@email.sps.mot.com - TOUCHTONE 602-244-6609 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, - US & Canada ONLY 1-800-774-1848 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852-26629298 INTERNET: http://motorola.com/sps
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MPX4105/D Motorola Sensor Device Data

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